I have same question about full stack web application development using kotlin.
Vue.js/Node.js (Express.js) is current development environment. I hate JavaScript for sure, but GWT fails and Flex sold out for front end development options are limited to JavaScript frameworks (hate angular 4 & React.js)
If I am not wrong kotlin got no front end UI library, e.g. primeNG for angular 4 & element.io for vue.js.
Right now, you have to use other JavaScript frameworks for front end and kotlin serving at REST API. Please correct me if I am wrong and good front end solution is available.
I am sick of javascript frameworks & like to use kotlin as single language for full stack development.